MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a heuristic firing for a malicious redirector link, which is also present in the document body. This link, 'https://ttraff.cc/wb?keyword=conectarse%20con%20dios%20pdf%20gratis', is designed to lure users into clicking it under the guise of a free PDF download. The document also exhibits characteristics of a link farm, with numerous embedded URLs pointing to external PDFs, many hosted on Shopify. The ML classifier strongly flagged this PDF as malicious.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL https://ttraff.cc/wb?keyword=conectarse%20con%20dios%20pdf%20gratis
- http://files.nancyharry.com/uploads/1/3/1/4/131411688/9e3e6a831402c91.pdf
- http://sisutazes.mysecondhandrose.com/uploads/1/3/1/3/131378950/poviw.pdf
- https://cdn.shopify.com/s/files/1/0433/1605/2123/files/fisanovopov.pdf
- https://cdn.shopify.com/s/files/1/0432/7541/9812/files/80413619709.pdf
- https://cdn.shopify.com/s/files/1/0434/3123/1655/files/vs_code_format_code_settings.pdf
- https://cdn.shopify.com/s/files/1/0437/6910/2485/files/al_quran_urdu_translation_kanzul_iman.pdf
- https://cdn.shopify.com/s/files/1/0431/4896/8090/files/gapugibanajid.pdf
- https://cdn.shopify.com/s/files/1/0431/4228/3432/files/administrao_pblica_brasileira_para_concursos.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/76102764406.pdf
- https://cdn.shopify.com/s/files/1/0447/2075/0745/files/dryer_sheets_inside_shoes.pdf
- https://cdn.shopify.com/s/files/1/0430/8851/1130/files/32322671716.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00003f40.bin743970ccd031c473d1142c4df16210dbdab181d46844cca858cf49fd12993c02 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x3F40 | 5196 bytes |
font_01_sfnt_off000050f1.bin8e2a6c439992e9457d6aa365afbaef50ffa6a70197dfa6ececb2ee971b0b8ad0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x50F1 | 9452 bytes |
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